Angles can be expressed in both degrees and radians. In this article, we will know about the approaches and methods to convert degrees to radians.
Method #1 : Using radians()
This method takes an array as an input parameter and returns an array that has radian values.
Python
# python code demonstrating usage of radians # method to convert degrees to radians # importing numpy library import numpy as np import math     # initialising an array array=np.arange(20.)*90  # printing degree values print('Values of array in Degrees:',array)   # converting to radians radian_array=np.radians(array)   # printing radian values print('Values of array in radians:',radian_array) |
Output:
Method #2: Using deg2rad()
This method takes input array and returns an array that has radian values the same as the size of the input array.
Python3
# python code demonstrating usage of radians # method to convert degrees to radians # importing numpy library import numpy as np import math   # initialising an array array=np.arange(20.)*90  # printing degree values print('Values of array in Degrees:',array)   # converting to radians radian_array=np.deg2rad(array)   # printing radian values print('Values of array in radians:',radian_array) |
Output:
Method 3: Using Formula
Python3
# python code demonstrating usage of radians # method to convert degrees to radians # importing numpy library import numpy as np import math   # initialising an array array=np.arange(20.)*90  # printing degree values print('Values of array in Degrees:',array) radian_array=[]   # converting to radians for i in array:     radian_array.append(i*math.pi/180)   # printing radian values print('Values of array in radians:',radian_array) |
Output:
